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-rw-r--r--id.server/src/at/gv/egovernment/moa/id/util/HTTPUtils.java63
1 files changed, 63 insertions, 0 deletions
diff --git a/id.server/src/at/gv/egovernment/moa/id/util/HTTPUtils.java b/id.server/src/at/gv/egovernment/moa/id/util/HTTPUtils.java
new file mode 100644
index 000000000..270b0c968
--- /dev/null
+++ b/id.server/src/at/gv/egovernment/moa/id/util/HTTPUtils.java
@@ -0,0 +1,63 @@
+package at.gv.egovernment.moa.id.util;
+
+/**
+ * HTTP Utilities
+ *
+ * @author Rudolf Schamberger
+ * @version $Id$
+ */
+
+import java.io.BufferedInputStream;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+import org.apache.regexp.RE;
+
+/**
+ *
+ * @author Rudolf Schamberger
+ *
+ */
+public class HTTPUtils {
+
+ /**
+ * Utility used to obtainin correct encoded HTTP content.
+ * Reads a given Content adressed by HTTP-URL into String.
+ * Content encoding is considered by using the Content-Type HTTP header charset value.
+ * @param URL HTTP URL to read from.
+ * @return String representation of content
+ * @throws IOException on data-reading problems
+ */
+ public static String readHttpURL(String URL)
+ throws IOException {
+
+ URL url = new URL(URL);
+ HttpURLConnection conn = (HttpURLConnection)url.openConnection();
+ conn.setRequestMethod("GET");
+ String contentType = conn.getContentType();
+ RE regExp = new RE("(;.*charset=)(\"*)(.*[^\"])");
+ boolean charsetSupplied = regExp.match(contentType);
+ String encoding = "ISO-8859-1"; //default HTTP encoding
+ if (charsetSupplied) {
+ encoding = regExp.getParen(3);
+ }
+ //TODO RS TEST if this works on all platforms
+ InputStream instream = new BufferedInputStream(conn.getInputStream());
+ InputStreamReader isr = new InputStreamReader(instream, encoding);
+ Reader in = new BufferedReader(isr);
+ int ch;
+ StringBuffer buffer = new StringBuffer();
+ while ((ch = in.read()) > -1) {
+ buffer.append((char)ch);
+ }
+ in.close();
+ conn.disconnect();
+ return buffer.toString();
+ }
+
+}